EXHIBIT 11 CHATTEM, INC. AND SUBSIDIARIES STATEMENT REGARDING COMPUTATION OF PER SHARE EARNINGS (Unaudited and in thousands, except per share amounts) FOR THE THREE MONTHS FOR THE SIX MONTHS ENDED ENDED MAY 31, MAY 31, -------------------- ---------------------- 1997 1996 1997 1996 --------- --------- --------- ----------- NET INCOME: Continuing operations................................................... $ 3,057 $ 2,010 $ 3,193 $ 1,973 Extraordinary loss...................................................... -- (532) -- (532) --------- --------- --------- ----------- Net income............................................................ $ 3,057 $ 1,478 $ 3,193 $ 1,441 --------- --------- --------- ----------- --------- --------- --------- ----------- WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT SHARES OUTSTANDING: Weighted average number of common shares outstanding.................... 8,613 7,743 8,608 7,519 Shares issued upon assumed exercise of outstanding stock options and stock warrants........................................................ 239 51 222 28 --------- --------- --------- ----------- Weighted average number of common and common equivalent shares outstanding........................................................... 8,852 7,794 8,830 7,547 --------- --------- --------- ----------- NET INCOME PER COMMON SHARE: Continuing operations................................................... $ 0.35 $ 0.26 $ 0.36 $ 0.26 Extraordinary loss...................................................... -- (0.07) -- (0.07) --------- --------- --------- ----------- Net income per common share........................................... $ 0.35 $ 0.19 $ 0.36 $ 0.19 --------- --------- --------- ----------- --------- --------- --------- -----------